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Danjun Liu
Researcher at Hong Kong Polytechnic University
Publications - 13
Citations - 882
Danjun Liu is an academic researcher from Hong Kong Polytechnic University. The author has contributed to research in topics: Perovskite (structure) & Plasmon. The author has an hindex of 6, co-authored 9 publications receiving 269 citations. Previous affiliations of Danjun Liu include City University of Hong Kong.
Papers
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Journal ArticleDOI
Regulating Surface Termination for Efficient Inverted Perovskite Solar Cells with Greater Than 23% Efficiency
Fengzhu Li,Xiang Deng,Feng Qi,Zhen Li,Danjun Liu,Dong Shen,Minchao Qin,Shengfan Wu,Francis Lin,Sei-Hum Jang,Jie Zhang,Xinhui Lu,Dangyuan Lei,Chun-Sing Lee,Zonglong Zhu,Alex K.-Y. Jen +15 more
TL;DR: A rationally designed bifunctional molecule, piperazinium iodide (PI), containing both R2NH and R2 NH2+ groups on the same six-membered ring, behaving both as an electron donor and an electron acceptor to react with different surface-terminating ends on perovskite films is reported.
Journal ArticleDOI
Modulation of Defects and Interfaces through Alkylammonium Interlayer for Efficient Inverted Perovskite Solar Cells
Shengfan Wu,Jie Zhang,Zhen Li,Danjun Liu,Minchao Qin,Sin Hang Cheung,Xinhui Lu,Dangyuan Lei,Shu Kong So,Zonglong Zhu,Alex K.-Y. Jen,Alex K.-Y. Jen +11 more
TL;DR: In this paper, a large alkylammonium interlayer (LAI) was employed to reduce the energy loss occurred between transport layers and perovskite, which can simultaneously suppress the non-radiative energy losses at both top and bottom interfaces.
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Room-Temperature Meniscus Coating of >20% Perovskite Solar Cells: A Film Formation Mechanism Investigation
Hanlin Hu,Zhiwei Ren,Patrick W. K. Fong,Minchao Qin,Danjun Liu,Dangyuan Lei,Xinhui Lu,Gang Li +7 more
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Efficient Inverted Perovskite Solar Cells with Low Voltage Loss Achieved by a Pyridine-Based Dopant-Free Polymer Semiconductor
Xianglang Sun,Zhen Li,Xinyu Yu,Xin Wu,Cheng Zhong,Danjun Liu,Dangyuan Lei,Alex K.-Y. Jen,Zhong'an Li,Zonglong Zhu +9 more
TL;DR: In this article, a pyridine-based polymer hole-transporting material (HTM) is proposed to reduce the NRR process inside perovskites and at the interface by rationally designing a new pyridine-based polycrystalline perovskiy material (PPY2).
Journal ArticleDOI
Minimized surface deficiency on wide-bandgap perovskite for efficient indoor photovoltaics
Zhen Li,Jie Zhang,Shengfan Wu,Xiang Deng,Fengzhu Li,Danjun Liu,Chia-Chen Lee,Chia-Chen Lee,Francis Lin,Dangyuan Lei,Chu-Chen Chueh,Zonglong Zhu,Alex K.-Y. Jen,Alex K.-Y. Jen +13 more
TL;DR: In this paper, a simple strategy by applying phenethylammonium halides to reduce the energy loss and suppress the phase segregation of wide-bandgap perovskite solar cells is developed.